MICROANATOMY

Detailed explanation-1: -Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood. Valves are actually flaps (leaflets) that act as one-way inlets for blood coming into a ventricle and one-way outlets for blood leaving a ventricle.

Detailed explanation-2: -The blood that is meant to leave the ventricles to travel to the body is supposed to be prevented from flowing in the wrong direction by the parts of the aortic and pulmonary valves called the cusps. The cusps help the valves create a tight seal, which helps blood flow in the correct direction.

Detailed explanation-3: -The artery have thick elastic walls and arteries receives blood in high pressure directly from the left ventricle. Because of the high pressure flow of blood from the heart and the elasticity of the vessels, they blood flows only in one direction in arteries.

Detailed explanation-4: -Check valves are one-way or nonreturn valves that open with fluid movement and pressure, and close to prevent backflow of the pressure to upstream equipment such as pumps and compressors. In fact, check valves allow the fluid to flow in only one direction.

Detailed explanation-5: -vein. Veins have valves to allow blood to flow in one direction only. Arteries carry oxygenated blood except for the artery, which carries blood to the lungs from the right ventricle. Arteries don’t require valves because pressure from the heart is so strong that blood is only able to flow in one direction.